Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) Resident from central Sonora, southern Arizona (breeds irregularly), Distrito Federal (Mexico), and central and southeastern Texas south through most of Middle America and South America west of Andes to western Ecuador, east of Andes to eastern Peru, Bolivia, northern Argentina, Paraguay, and southeastern Brazil; formerly bred in Puerto Rico; one breeding record for Tennessee, possibly based on escaped individuals. Possibly expanding range into eastern Texas and southwestern Louisiana (see McKenzie and Zwank 1988). In the U.S., occurs in winter primarily in southern coastal Texas (Root 1988).